import React from 'react';
import ReactDOM from 'react-dom/client';
import './index.css';
import App from './App';
import reportWebVitals from './reportWebVitals';

// 添加页面刷新/关闭前的清理和跳转逻辑
window.addEventListener('beforeunload', () => {
  // 1. 清除游戏数据
  sessionStorage.removeItem('questionBank');
  sessionStorage.removeItem('answeredQuestions');
  
  // 2. 跳转到首页
  window.location.href = '/';
});

const root = ReactDOM.createRoot(document.getElementById('root'));
root.render(
  <React.StrictMode>
    <App />
  </React.StrictMode>
);

// If you want to start measuring performance in your app, pass a function
// to log results (for example: reportWebVitals(console.log))
// or send to an analytics endpoint. Learn more: https://bit.ly/CRA-vitals
reportWebVitals();
